IIRC they're phasing out the HE-500, but I didn't hear anything of the HE-4 and HE-6, or even the standard HE-400.
I believe they new ergonomics and aesthetics would breathe new life to the older line due to the massively improved comfort, assuming they're not sitting on a huge surplus of these headphones.
If anything, I expect modders to remove the 400i's drivers and use the 500's or HE-6's drivers instead... for the sake of science. Or is the design too different inside? I know nothing about DIY.
Edited by Mad Lust Envy - 7/8/14 at 1:55am